Let me preface my comments by saying that I'm not an expert in this matter; nonetheless, I'll do my best to think clearly about the issues.
I think you'll find his response below to be both interesting and illuminating.
Wm LCYour questions are good and important ones, Daniel, and unfortunately the Christian community at large tends to avoid questions like these.
Many people are intersexed in ways that are not visible to their partners.
For example, an individual with AIS (androgen insensitivity syndrome) is born with internal testes but genitalia that look typically female.
Thank you, Daniel Yours is an intriguing question, Daniel, about which I unfortunately know nothing.